“It spells trouble for us," said William Rouse, general manager of Yellow Cab of Los Angeles, the city's largest taxicab company.

While cab drivers might worry about Uber cutting into their profits, the cabbie business at LAX is currently strong, Rouse said. Yellow Cab pick-ups were up 7 percent last month versus January of 2015, even with competition from the ride-sharing service Lyft at LAX.

"That airport has grown considerably in overall passenger volume, and taxicabs today are taking more passengers out of the airport than they ever have,” said Rouse.

"Airports are one of the prized sites for earnings for taxi drivers," a July 2015 policy brief from the UCLA Labor Center said. "Drivers are given access to the airport one day of the week known as their 'airport day.' Drivers typically earn more money due to longer fares, and they tend to work longer days."

"They continue using a weak background check system that does not even have the possibility of considering convictions that are over seven years old," said Rouse. "There's no doubt that there are certain consumers who choose [ridesharing companies] in spite of their obvious risks."

One thing that has irked riders about Lyft pickups at LAX is they can only catch rides on the departure level. Because of that, both companies have to charge passengers a $4 dollar fee for every ride. That money gets passed along to the airport and presumably will help offset revenue lost from parking, which has been a problem at Burbank's Bob Hope Airport.